Metallic rod-packing



(No Model.)

. 4 2 Sheets-Sheet 1. B. P. MONROE. METALLIC ROD PAGKING.

N0. 444,386. Patented Jan. 6, 1891.

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E. P. MONROE. METALLIC. ROD PACKING.

No. 444,386. Patented Jan 6,4891.-

' 202M272? mama: *(Q /v 7 /zm4 4 /6 W CEM UNITED STATES PATENT @EETCE.

EDIVIN PEAR MONROE, OF PHILADELPHIA, PENNSYLVANIA.

METALLIC ROD-PACKING.

SPECIFICATION forming part of Letters Patent No. 444,386, dated January 6, 1891.

Application filed August 7, 1890. Serial No. 361,284. (No model.)

To ttZZ whont it may concern:

Be it known that I, EDWIN PEAR MONROE, of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Metallic Rod-Packing, of which the following is a specification, reference being had to the accompanying drawings.

My improvements relate to what is known as segmental metallic rod-packing, of the gen eral character shown in United States Patent No. 112,423 and Reissue Patent No. 9,365. Such packings are usually self-adjusting that is to say, adapted to move within a packing-case laterally to accommodate the lateral movements of piston-rods, &c. In such packings as heretofore made the case has been stationary, and the parts of the packing within the case have been made to move within it to correspond to the lateral or vibratory movements of the rods.

My present invention relates to a rod-packing in which the case is made movable with the packing-blocks instead of remaining stationary, as in previous devices. Where the case is made stationary, it is necessary to out it away sufficiently to allow the rod ample lateral play. This cutting away of the case diminishes the bearing for the packing-blocks, so as to rendert-heir fastening somewhat insecure, especially after a little wear of the block has taken place. By the use of my present improvement this objection is obviated, because the hole through the outer end of the case need only to be made very slightly larger than the diameter of the rod, thusleaving ample bearin -surface for the packingblocks.

In the accompanying drawings, illustrating my invention, Figure 1 is an elevation, partly in section; and Fig. 2 is a plan view, looking from the top of the packing, partly in section.

Referring to the letters upon the drawings, A indicates the case 5 B, the rod; 0, asection of acylinder-head, and D a stuffing-box integral therewith.

E indicates a packing-block, and F another packing-block, in practice placed at right angles with the one first named, substantially as shown in United States Patent No. 112,428, and as is well known.

G indicates an annular plate, preferably of brass or other soft metal, having corrugated surfaces, so as tobetter form asteam-tight joint under compression. This plate rests upon the outer end of the stuffing-box and forms a seat for the annular spring-plate H, carrying springs I, upon which rest the follower K. The spring-plate II is provided with an annular projection L, forming a shoulder, against which the follower bears to prevent any lateral movement of it.

M indicates an annular block-plate resting upon the follower and forming a seat for the inner set of the packing-blocks. The outer set rests against the case at P, as shown in Fig. 1. Each set of blocks is provided with springs, as usual, for moving the blocks laterally to compensate for wear.

The spring-plate II is provided with screwholes for the threaded bolts Q, which secure it to the outer end of the stufling-box. It serves to support the ball-and-socket ring R, which has a curvilinear bearing-surface at S, fitting the bearing-surface of the case.

T indicates an annular clamping-plate, which clamps the ball-and-socket ring to the spring-plate H, and is held in place upon the spring-plate II by screw-bolts U.

By this construction it will be seen that the space between the outer end of the casing and the rod at V is only slight as compared with the space usually necessary to accommodate the operation of metallic packing as heretofore constructed. The result is that the case bears upon a much larger surface of the packingblocks E and secures them against any rocking movement, and permits them to be thrust inward by springs to compensate for wear until they are almost entirely worn out. At the same time I get the usual rocking movement and lateral sliding movement necessary in this class of packings. The case rocks on the curvilinear face of the ball-and-socket ring, and the ring slides on its bearings and the block-plate M slides on the follower. Steam or other motive substance is admitted through the stuffing-box, as usual, and exerts a force to press the parts of the packing toward the outer end of the case.

What I claim is 1. In a metallic rod-packing, the combination of a main easing A, adapted to have a rocking and a sliding movement, the laterally-acting packing-springs, the hall-andsoeket ring R, the block-plate M,and the follower K, constructed and arranged as setforth.

2. In a metallic rod-packing, the combination, with a main easing A, adapted to have a rocking and a sliding, movement, the laterallyaeting paekin g-rings, the ball-and-soeket 1'1 11;: R, the block-plate M, the follower K, the spring-plate II, and the annular clampingplate, oonstrueted and arranged substantially as set forth.

3. In a metallic rod-packing, the combination of a main easing A, adapted to have a rocking and a sliding movement, the laterally-acting packing-rings. the ball-and-soeket ring R, the block-plate M, the follower K, and the segmental paekingblocks adapted to move with the caseand provided with springs bearing against the case to compensate for wear of the blocks, substantially as set forth.

In testimony of all which I have hereunto subscribed my name.

EDWIN PEAR MONROE.

Witnesses:

THOS. S. HOPKINS, G. P. ELWELL. 

